ACTA AERONAUTICAET ASTRONAUTICA SINICA >
Multibody system unsteady simulation technology for morphing aircraft
Received date: 2023-06-25
Revised date: 2023-08-09
Accepted date: 2023-09-18
Online published: 2023-09-27
Supported by
National Key Research and Development Program of China(2019YFB1704204)
Morphing aircraft can adjust their shape to suit different flight environments and missions， which gives them significant advantages in terms of aerodynamics， control， and application scenarios. To design a feasible morphing aircraft separation/deformation mechanism， simulation tools are essential for identifying design risks and optimizing mechanism design. Aiming at the simulation requirements of various multibody system unsteady problems of morphing aircraft， a lightweight multibody dynamics open source simulation software MUSE was developed based on the Udwadia-Kalaba method. MUSE adopts an object-oriented programming method， which allows users to create corresponding rigid body objects and constraint objects according to the actual mechanical system without requiring users to understand the specific expressions of the multibody dynamics equations. A coupling calculation framework between MUSE and CFD solver was established in the present paper， which achieved the multibody system unsteady simulation of morphing aircraft separation/deformation process. The verification examples demonstrated that MUSE can accurately solve multibody dynamics problems， and the coupling calculation between MUSE and CFD can effectively overcome the multibody system unsteady simulation challenges faced by various morphing aircraft separation/deformation processes.
Key words： morphing aircraft; unsteady; multibody dynamics; separation; coupling calculation
He ZHANG , Qingyang LIU , Liugang LI , Jingyao XU . Multibody system unsteady simulation technology for morphing aircraft[J]. ACTA AERONAUTICAET ASTRONAUTICA SINICA, 2023 , 44(S2) : 729421 -729421 . DOI: 10.7527/S1000-6893.2023.29421
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